– Online Seminar
Numerical semi-groups and applications
Abdallah ASSI (University of Angers)
Sumati Surya (Raman Research Institute, Bangalore, India)
Causal set theory is a discrete approach to quantum gravity, where the Lorentzian spacetime continuum is replaced by locally finite partially ordered sets. The latter, which we call a "causal set" is a discretisation of the causal structure of the spacetime. In this talk I wish to present the broad mathematical aspects of the theory. I will focus in particular on the "geometric reconstruction" of the continuum from the causal set, where order invariants are used to reconstruct the geometry and the topology of the spacetime.
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